/* ============================================
   KIRMA - Design System & Styles
   Enhanced Clone with Premium Improvements
   ============================================ */

/* ============ CSS Custom Properties ============ */
:root {
  /* Colors */
  --bg-primary: #050507;
  --bg-secondary: #0a0a0f;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 184, 0, 0.3);

  --accent: #FFB800;
  --accent-orange: #FF6B00;
  --accent-purple: #7800ff; /* New accent */
  --accent-glow: rgba(255, 184, 0, 0.12);
  --accent-glow-strong: rgba(255, 184, 0, 0.25);

  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);

  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: 16px;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Sizing */
  --container-max: 1200px;
  --nav-height: 80px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.23, 1, 0.32, 1);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

/* ============ Reset & Base ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: #ffffff !important; /* Explicitly white text for max visibility */
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Particle Canvas */
#particleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* ============ Typography ============ */
.mono {
  font-family: var(--font-mono);
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 56ch;
  line-height: 1.7;
  margin-bottom: 3.5rem;
}

.body-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

/* ============ Layout ============ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 7rem 0;
  position: relative;
  z-index: 1;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  background: rgba(120, 0, 255, 0.1);
  padding: 0.4rem 0.8rem;
  border-radius: 100px;
  border: 1px solid rgba(120, 0, 255, 0.2);
}

.tag-line {
  display: block;
  width: 1.5rem;
  height: 1px;
  background: var(--accent-purple);
}

/* ============ Navigation ============ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
}

#navbar.scrolled {
  background: rgba(5, 5, 7, 0.75);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.375rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #ffffff !important; /* Fallback */
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

.nav-link.active {
  color: var(--accent);
}

.nav-link--cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-orange));
  color: #000 !important;
  font-weight: 700;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
  transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-link--cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow-strong);
  background: linear-gradient(135deg, var(--accent), var(--accent-orange)) !important;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.mobile-menu-btn:hover {
  border-color: var(--accent);
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-orange) 100%);
  color: #000;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow-strong);
}

.btn--primary:active { transform: translateY(0); }

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn--full { width: 100%; }

.btn-loader {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(0,0,0,0.3);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============ Hero Section ============ */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg-effects {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.glow--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 184, 0, 0.3), transparent 70%);
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  animation: glowPulse 6s ease-in-out infinite;
}

.glow--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(120, 0, 255, 0.2), transparent 70%);
  bottom: 10%;
  left: -5%;
  animation: glowPulse 8s ease-in-out infinite 2s;
}

.glow--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 200, 255, 0.15), transparent 70%);
  bottom: 20%;
  right: -5%;
  animation: glowPulse 7s ease-in-out infinite 4s;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.25; transform: scale(1) translateX(var(--tx, 0)); }
  50% { opacity: 0.45; transform: scale(1.1) translateX(var(--tx, 0)); }
}

.glow--1 { --tx: -50%; }

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 1.125rem;
  background: rgba(255, 184, 0, 0.08);
  border: 1px solid rgba(255, 184, 0, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
  animation: fadeIn 0.8s ease 0.2s both;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: dotBlink 2s ease-in-out infinite;
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: #ffffff !important; /* Fallback */
  color: var(--text-secondary);
  max-width: 52ch;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.55s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
  animation: fadeInUp 0.8s ease 0.7s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 1.5rem 2rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease 0.85s both;
}

.stat-card {
  padding: 0 2.5rem;
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 1;
  animation: fadeIn 1s ease 1.5s both;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.4; transform: scaleY(1) translateY(0); }
  50% { opacity: 1; transform: scaleY(1.1) translateY(3px); }
}

.scroll-text {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
}

/* ============ Intro Section ============ */
.intro-section {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.intro-visual {
  position: relative;
  height: 320px;
}

.tech-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  transition: transform var(--transition-slow), border-color var(--transition-base), box-shadow var(--transition-base);
}

.tech-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 24px var(--accent-glow);
}

.tc-icon { font-size: 2rem; }
.tc-label { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.1em; }

.tc--1 { top: 0; left: 0; animation: float1 6s ease-in-out infinite; }
.tc--2 { top: 0; right: 0; animation: float2 7s ease-in-out infinite; }
.tc--3 { bottom: 0; left: 30px; animation: float3 8s ease-in-out infinite; }
.tc--4 { bottom: 0; right: 30px; animation: float1 5.5s ease-in-out infinite; }

@keyframes float1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.floating-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(30px);
  pointer-events: none;
}

.orb--1 {
  width: 150px;
  height: 150px;
  background: rgba(255, 184, 0, 0.1);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.orb--2 {
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  top: 20%;
  right: 20%;
  opacity: 0.4;
}

/* ============ Services Section ============ */
.services-section {
  border-top: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.service-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-slow), border-color var(--transition-base), box-shadow var(--transition-base);
  animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.service-card:nth-child(2) { animation-delay: 1s; }
.service-card:nth-child(3) { animation-delay: 2s; }

.service-card:hover, .service-card:focus {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
  outline: none;
}

.service-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.service-card--featured {
  border-color: rgba(255, 184, 0, 0.3);
  background: rgba(255, 184, 0, 0.04);
}

.service-card:hover .service-card__glow,
.service-card--featured .service-card__glow {
  opacity: 1;
}

.service-card__glow {
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.service-card__inner {
  padding: 2rem 2rem 2.5rem;
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.service-number {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.featured-badge {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-orange));
  color: #000;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  border-radius: 100px;
  margin-bottom: 0.75rem;
  width: fit-content;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.875rem;
  letter-spacing: -0.02em;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  flex: 1;
}

.service-features {
  list-style: none;
  margin-bottom: 1.75rem;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
}

.service-features li:last-child { border-bottom: none; }

.feature-check { color: var(--accent); font-weight: 700; }

.service-metric {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.875rem 1rem;
  background: rgba(255, 184, 0, 0.05);
  border: 1px solid rgba(255, 184, 0, 0.15);
  border-radius: var(--radius-sm);
}

.metric-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============ Cases Section ============ */
.cases-section {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(255,184,0,0.02), transparent);
}

.cases-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.case-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2.25rem 2.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-base);
}

.case-item:last-child { border-bottom: none; }

.case-item:hover {
  background: var(--bg-card-hover);
}

.case-item:focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.case-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-muted);
  line-height: 1;
  transition: color var(--transition-base);
}

.case-item:hover .case-number { color: var(--accent); }

.case-content { flex: 1; }

.case-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.tag {
  padding: 0.2rem 0.75rem;
  background: rgba(255, 184, 0, 0.08);
  border: 1px solid rgba(255, 184, 0, 0.2);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.case-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.case-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  max-width: 55ch;
}

.case-metrics {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.case-metric {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.case-metric__value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.case-metric__label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.case-arrow {
  color: var(--text-muted);
  transition: color var(--transition-base), transform var(--transition-base);
  flex-shrink: 0;
}

.case-item:hover .case-arrow {
  color: var(--accent);
  transform: translateX(4px) translateY(-4px);
}

/* ============ Why Section ============ */
.why-section {
  border-top: 1px solid var(--border);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform var(--transition-slow), border-color var(--transition-base), box-shadow var(--transition-base);
}

.why-card:hover, .why-card:focus {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px var(--accent-glow);
  outline: none;
}

.why-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.why-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.why-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
}

.why-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============ Process Section ============ */
.process-section {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(120,0,255,0.02), transparent);
}

.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.process-step {
  display: grid;
  grid-template-columns: 80px 80px 1fr;
  align-items: start;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.process-step:last-child { border-bottom: none; }

.process-step:hover { background: rgba(255,255,255,0.015); }

.step-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.5rem;
  height: 100%;
}

.step-line {
  width: 1px;
  flex: 1;
  background: linear-gradient(to bottom, var(--accent), transparent);
  min-height: 60px;
}

.step-connector--last .step-line { display: none; }

.step-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 184, 0, 0.3);
  line-height: 1;
  padding-top: 0.25rem;
  transition: -webkit-text-stroke-color var(--transition-base), color var(--transition-base);
}

.process-step:hover .step-number {
  -webkit-text-stroke-color: var(--accent);
}

.step-content {
  padding-top: 0.25rem;
}

.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 184, 0, 0.08);
  border: 1px solid rgba(255, 184, 0, 0.2);
  border-radius: var(--radius-sm);
  color: var(--accent);
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 60ch;
  margin-bottom: 1rem;
}

.step-duration {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(255, 184, 0, 0.06);
  border: 1px solid rgba(255, 184, 0, 0.15);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

/* ============ About Section ============ */
.about-section {
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
}

.about-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base);
}

.about-card:hover { border-color: var(--border-hover); }

.about-card-label {
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-badge {
  padding: 0.3rem 0.875rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.work-model {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.work-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.work-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.about-tagline {
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 1.75rem;
  margin-top: 0.25rem;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base);
}

.value-item:hover { border-color: var(--border-hover); }

.value-icon { font-size: 1.5rem; flex-shrink: 0; }

.value-item strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.value-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* ============ Contact Section ============ */
.contact-section {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(255, 184, 0, 0.02), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 5rem;
  align-items: start;
}

.contact-perks {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.perk {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.perk-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 184, 0, 0.08);
  border: 1px solid rgba(255, 184, 0, 0.2);
  border-radius: var(--radius-sm);
}

.perk strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.perk p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-label span { color: var(--accent); }

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder { color: var(--text-muted); }

.form-input:hover { border-color: rgba(255,255,255,0.15); }

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(255, 184, 0, 0.02);
}

.form-input.is-error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  background-color: rgba(255,255,255,0.04);
}

.form-select option {
  background: #111;
  color: var(--text-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-error {
  font-size: 0.8rem;
  color: #ef4444;
  min-height: 1rem;
}

.char-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-align: right;
}

.form-success {
  text-align: center;
  padding: 3rem 2rem;
}

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent), var(--accent-orange));
  color: #000;
  font-size: 1.75rem;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  font-weight: 700;
}

.form-success h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-success p { color: var(--text-secondary); }

/* ============ Footer ============ */
.footer {
  border-top: 1px solid var(--border);
  padding: 5rem 0 2rem;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand { max-width: 300px; }

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 1rem 0;
}

.footer-tagline {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  margin-top: 0.75rem;
}

.footer-nav-title {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.footer-nav a, .footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover, .footer-links a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

/* ============ Back To Top ============ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: rgba(255, 184, 0, 0.9);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  z-index: 999;
  opacity: 0;
  transform: translateY(12px) scale(0.9);
  transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  pointer-events: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.back-to-top:hover {
  box-shadow: 0 8px 24px var(--accent-glow-strong);
  transform: translateY(-3px) scale(1.05);
}

/* ============ Animations ============ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }

  .section { padding: 5rem 0; }

  /* Mobile Navigation */
  .mobile-menu-btn { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(5, 5, 7, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0.5rem;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-sm);
  }

  .nav-link--cta { text-align: center; margin-left: 0; }

  /* Hero */
  .hero-stats {
    flex-direction: column;
    gap: 1.25rem;
  }

  .stat-divider { width: 80%; height: 1px; }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn { width: 100%; justify-content: center; }

  /* Intro */
  .intro-grid { grid-template-columns: 1fr; gap: 3rem; }
  .intro-visual { height: 280px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Cases */
  .case-item {
    grid-template-columns: 60px 1fr;
    gap: 1.25rem;
  }
  .case-arrow { display: none; }
  .case-metrics { gap: 1rem; }

  /* Why */
  .why-grid { grid-template-columns: 1fr; }

  /* Process */
  .process-step {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }
  .step-number { font-size: 1.75rem; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-visual { position: static; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-brand { max-width: none; }
  .footer-bottom {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  /* Back to top */
  .back-to-top { bottom: 1.5rem; right: 1.5rem; }
}

/* ============ WhatsApp Floating Button ============ */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 56px;
  height: 56px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.whatsapp-float:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
  margin-left: 2px;
  margin-top: -1px;
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 1.5rem;
    left: 1.5rem;
    width: 48px;
    height: 48px;
  }
}

@media (max-width: 480px) {
  .hero-stats { padding: 1.25rem; }
  .stat-card { padding: 0.5rem 0; }
  .contact-form-wrapper { padding: 1.5rem; }
  .section-title { font-size: 1.875rem; }
}

/* ============ Utility ============ */
::selection {
  background: rgba(255, 184, 0, 0.3);
  color: var(--text-primary);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: rgba(255, 184, 0, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 184, 0, 0.6); }